424530 has 48 divisors (see below), whose sum is σ = 1137240. Its totient is φ = 109824.

The previous prime is 424519. The next prime is 424537. The reversal of 424530 is 35424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 321489 + 103041 = 567^2 + 321^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 424530.

It is not an unprimeable number, because it can be changed into a prime (424537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4726 + ... + 4814.

2⁴²⁴⁵³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568620).

424530 is an abundant number, since it is smaller than the sum of its proper divisors (712710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424530 is a wasteful number, since it uses less digits than its factorization.

424530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 424530 is about 651.5596672600. The cubic root of 424530 is about 75.1570044321.

Adding to 424530 its reverse (35424), we get a palindrome (459954).

The spelling of 424530 in words is "four hundred twenty-four thousand, five hundred thirty".